Fractal Dimension Analysis of Ternary Blends Structure: Polypropylene/Chitosan/Sisal Fiber Membranes

Abstract Generally, the microstructures of thin and dense skin membranes have a disorderly nature. Due to their extremely complex nature, it is necessary to study the relationship between surface morphology and fractal dimension of microfiltration membrane. The fractal dimension analysis of the polymer composite was study to provide information about the primary pore size and their associations with flux in porous media. The fractal dimensions of membranes were obtained by the box-counting method. The membranes with increased amount of sisal fiber have inter-twined fibrous network with larger pores. The fractal dimension values of the membranes were also high with increasing amount of sisal fiber, with 86%PP/10% SF/4% C having the highest value of 1.9951.